Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Alex R Tan, OD

Individual provider Optometrist · NPI 1215921655

Alex R Tan, OD is an Optometry in Oak Park, Illinois. Graduated from Illinois College of Optometry at Chicago in 1999, 27 years ago. Practices with Illinois College of Optometry, a 77-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
27
Trained at
Illinois College of Optometry at Chicago
Licensed in
IL
In the registry since
2005
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

603 Madison St
Oak Park, IL 60302-4437
Phone: (708) 383-2150
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 046009172 (IL)

Record details

NPI number1215921655
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedAugust 31, 2005
Last updated in NPPESFebruary 6, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 1999 (27 years in practice)
Group practice Illinois College Of Optometry — 77 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Oak Park